They walked on. They passed a baths-unfinished, but in use, and quite unmistakable to Brigonius from its musty, boggy smell, just like the soldiers' baths at Vindolanda.

They reached the marketplace. Lepidina, with a squeal of excitement, begged more money from Karus. Soon she was working her way through stalls heaped with jewellery and little bottles of perfume and hair oil. The men walked on.

Once more Brigonius felt overwhelmed. Compared to the rough-and-ready market that had grown up outside the Vindolanda fort there was a bewildering array of goods for sale here: cosmetics of all sorts in little glass jars and bottles, silver and copper pins and brooches, plates and bowls and tiles, stalls heaped with shoes of stitched leather. There were bakers and vendors of broiled meat, and the heat of their ovens turned the air ferociously hot. There were even moneylenders, bankers and lawyers-and many, many bookmakers.

Shoppers thronged. There were plenty of Catuvellaunians, of course. But Brigonius saw Germans and Gauls of the kind the army was full of, and still more exotic types with very pale skin, or very dark, who sold wines and spices for exorbitant prices. They were traders from perhaps far across the empire or even beyond, come here to this corner of Britain to sell their wares. Everyone seemed confident here, happily buying and selling, all of them at home in a place where they knew the rules, all save Brigonius.

And beggars crowded around every stall, silently pleading for change. There were no beggars in Banna; people looked after their own. Brigonius wondered what old Cunobelin would have thought of what had become of his descendants.

More public buildings surrounded the forum. Karus led Brigonius to a great hall whose unfinished walls rose above the heads of the shoppers. They walked through a colonnade of pillars and over a stone floor that was, as yet, unroofed. Brigonius saw that the floor was weather-stained; evidently the building had been in this half-finished state for some time.

'This will be the basilica,' Karus said. 'The great folk of the town will run their local government from here-they will collect the taxes for one thing, and bundle them all off down to Londinium for the procurator to count up.' The construction of the building was proceeding only as the funds became available, so was taking a long time. 'Still, this is the task of our generation. Our fathers set out the town. Now we must build it.'

Brigonius frowned. 'I think I imagined the Emperor would pay for all this.'

Karus pursed his lips. 'Not a bit of it. We enjoy the fruits of Roman civilisation but we must pay for it ourselves. Which we do, of course, gladly. You know, Brigonius, if you're to become a rich man you'll have to learn about how to handle your wealth. To begin with you must have wealth-the more the better. From wealth flows power and status; with wealth you are a source of patronage. Second, you mustn't flaunt your wealth. Oh, spend it, yes; make sure people know you have it-but in a restrained way. And you must be sure you invest your wealth in projects for the public good, like this basilica. Paradoxical, isn't it? But Romans are paradoxical folk, in many ways.'

The lawyer seemed to have opened up to Brigonius during this brief walk. 'You know, Brigonius, I'm not much of one for reflection. Live for the day, I say, for yesterday is irrelevant, and tomorrow may never come! But one thing I've enjoyed about Severa's correspondence is her sense of perspective-of history. Just think, a hundred years ago there was no city like this, no building remotely like this roofless basilica, not anywhere in Britain. They've all sprung up like mushrooms. My grandfather was a hunter. He wore moleskins on his feet, stuffed with bird feathers. Now look at me, his grandson! I'm a lawyer. I go to work in an office in a block several storeys high, with windows of glass. I buy my food from vendors, my coins operate locks on latrines-and stamped on every coin is an uplifting message from the Emperor himself. Somehow the Prophecy has enabled Severa to see all this, to see these great changes, as if she is standing outside history altogether.'

But Brigonius pulled on his beard, unconvinced. He thought of his northern home, where the people herded their cattle just as they had always done-as indeed the mass of people even in the south still scraped at the soil. This heaped-up wonder of stone and commerce was a fragile, light confection, he thought, built on the extraction of wealth from farmers to whose lives the Roman presence hardly made any difference at all.

'And if it all should end, as fast as it has arisen-what then?'

Karus grinned. 'Then I'd be in trouble. I'm not my grandfather-I couldn't make myself a pair of shoes! But it's not going to end, is it? Severa's Prophecy ensures us of that.'

'Karus, this business of Severa and the stone wall-she is a gambler, you know, just as Lepidina says.'

'I know. But in the game to come the Prophecy is her loaded die, I think.'

They emerged from the incomplete building and walked on past a large semicircular theatre, and came to a broad square paved with stone. And here rose up the grandest building of all. Clad in shining marble it was a temple built in the Roman fashion, with a double colonnade and a terracotta roof. A flight of steps led up to an open interior where Brigonius glimpsed a mighty statue of bronze, many times life-size.

He stood and stared, astounded by the temple's scale. Even its base, a mighty slab of concrete poured into the sandy earth, was stupendous, surely unmatched by anything that had existed in Britain before the Romans.

'This is the Temple of Claudius, built to honour the deified Emperor.' Karus shook his head. 'Astonishing, isn't it? I've grown up with it, but even now it astounds me. In fact it's talked of even in Rome, where they've seen everything.'

Brigonius thought of the wealth and labour this huge structure must have sucked up. 'I'm surprised this could be afforded.'

'Well, perhaps it couldn't,' Karus murmured. 'The Romans don't make you any richer, after all; they just tax you. The Temple always caused great resentment. Boudicca came here and burned it to the ground-along with the veterans and their families who had sheltered inside. When she was put down they built the walls around the town, and the Temple was reconstructed, bigger and better and more expensive than ever. But it was built on ash, and charred pots and burned bones. Makes you think.'

Lepidina came running up. She showed off a new necklace and a comb for her mother's hair, and both men made appreciative noises. 'So what do you think of Camulodunum, Brigonius?'

Brigonius peered up at the Temple's cold, beautiful lines. How could this be a holy place? His ancestors had lived close to the earth, and the divine had been an integral part of an ancient way of life. To them wood was alive, stone was dead. The stone town that was rising here was like a vast tomb.

He looked into Lepidina's excited, sparkling eyes, his feelings deep and confused, regretting that he couldn't share her joy. He merely said, 'It'll look good when it's finished.'

The lawyer turned away. Perhaps Karus detected his true mood.

Lepidina impulsively ruffled Brigonius's beard. 'If you're living in a Roman town you have to look like a Roman. I found a barber in the middle of the forum.'

Brigonius held back. 'Not my beard. You're not taking my beard.'

Lepidina pouted. 'Your hair, then. That mane could do with a good shearing. The barber is good; he knows the latest fashions.'

'How do you know that?'

Lepidina held up a coin, imprinted with a picture of the Emperor and his coiffed hair. 'How do you think? Come on.' She dragged Brigonius back towards the forum. Like a hound submitting to the feeble pull of a puppy, Brigonius followed.